Attachment for printing-presses.



E. W. ELPES.

ATTACHMENT FOR PRINTING PRESSES.

APPLICATION FILED PEB.2B, 1914.

Patented Dec. 1, 1914.

2 SHEETS-4311331 1.

W/T/YE-SIZES MW nu. NORRIS PETERS CU PNOTO-LITHOU WASNINCION. O C

B. W. ELFES.

ATTACHMENT FOR PRINTING PRESSES.

APPLICATION FILED PEB.26, 1914.

Patented Dec. 1, 1914.

2 SHEETS-SHEET 2.

INVE/YTQR THE NORRIS PETERS C0. PHOTDLITHO, WASHINGTON, D. C

EUGENE W. ELFES, OF MINNEAPOLIS, MINNESOTA.

ATTACHMENT FOR PRINTING-PRESSES.

Specification of Letters Patent.

Ilatented Dec. 1, 1914:.

Application filed February 26, 1914. Serial No. 821.330.

To all whom it may concern Be it known that I, EUGENE W. ELFES, acitizen of the United States, resident of. Minneapolis, county ofHenncpin, State of Minnesota, have invented certain new and usefulImprovements in Attachments for Printing-Presses, of which the followingis a specification.

The object of my invention is to provide an attachment for a printingpress by means of which the back or reverse side of a label can be linedor marked to indicate the proper position for the package thereon toinsure the correct registration of each panel of the label with thepanels of the package.

The invention consists generally in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanyingdrawings forming part of this specification, Figure lis a plan sectional view of a portion of a printing ress with myinvention applied thereto, ig. 2 is a transverse sectional view tln'oughthe printing cylinder, showing the position of my attachment withrespect thereto, Fig. 3 is a similar View, illustrating the attachmentWithdrawn to an inoperative position, Fig. 4 is a view of the reverseside of a sheet of nine labels, Fig. 5 is a perspective View, showingthe manner of alining the edge of the package with the mark or line onthe label.

In the drawing, 2 represents the cylinder of a printing press having theusual gripper 3 and a feed table 4: on which the labels are placed.

5 represents the printing platen of the machine, the labels beinggripped and carried down by the cylinder into contact with the platen inthe usual way to print the colors on the label.

T 0 enable a person to properly wrap the label around a package to whichit is to be applied, such as a breakfast food carton, It has beencustomary to provide a line or mark on the reverse side of the labelwith which the longitudinal edge of the package is registered to enablethe person wrapping the package to bring the panels of the package andthe panels of the label in true coincidence. To avoid the necessity ofrunning the label through the press a second time to make theregistering mark thereon, I have provided an attachment for the presswhich I will now describe in detail.

6 represents a suitable frame, secured to the frame of the press and 7 ashaft geared at 8 to the press cylinder to revolve twice with eachrevolution of the cylinder. On the shaft 7 is mounted a disk 9 havingribs 10 seated in its periphery and spaced apart a uniform distance,dividing the peripheral surface of the disk into three areas. These ribsconform to the curvature of the disk and are arranged to contact withthe inking roll 11 carried by the shaft 12. The roll 1.1 contacts with aroll 13 which is supplied with ink from a reservoir 14 by means of rolls[5 and 16. This inking mechanism is of ordinary construction and doesnot require detailed description herein. There are three of the lisks 9mounted on the shaft 7 for marking three independent rows of lines onthe sheet, as indicated in Fig. 4, but as these disks are all alike, Ihave for convenience of illustration, shown but one of them. On thissame shaft 7 I provide wheels 7' which are adapted to bear on thesurface of the cylinder 2 at each end thereof and limit the movement ofthe shaft 7 toward the cylinder and the pressure of the marking ribs 10thereon.

At one side of the machine is shown a shifter arm 17 by means of which alongitudinal movement is imparted to the roll 13 to feed it back andforth on the surface of the roll 11 in the usual way. The shaft 7 ismounted in sliding boxes 18 which have eccentric strap connections 19with eccentrics 20 on a shaft 21, said shaft being rocked through asuitable mechanism, such as the crank 22 and the rod 23. By means ofthis eccentric mechanism the disk 9 is alternately moved into and out ofcontact with the surface of the cylinder, its movement being so timedthat it will be withdrawn from contact with the cylinder during thepassage of the label between the cylinder and the disks and as soon asthe label has passed the disk 9 the eccentric mechanism will be actuatedto move the disk into contact with the cylinder and make the inkimpression thereon to be transferred to the reverse side of the labelwhen it passes between the printing cylinder and the platen during theprinting operation. The printing of the line on the reverse side of thelabel will be accomplished during the printing on the face of the labelbetween the panels, that is, where the label is printed in severalcolors, as usual in lithograph work.

In Fig. 4 a sample sheet is shown, from which a series of labels arecut, the dotted lines indicating the point of separation of the labels.Near one end of each label the line appears by means of which the cartonis alined on the back of the label to coincide with the panels on theface thereof.

The device is built to be applied to an ordinary two revolution printingpress without making any material change therein or adding to any greatextent to the expense of the machine.

In various ways the details of construction may be modified and still beWithin the scope of my invention. I

I claim as my invention:

1. The combination, with a printing cylinder and platen, of means formaking a line.

impression upon the surface of the cylinder at predetermined intervals,said means including a disk having peripheral inking ribs thereon, meansfor moving said disk toward said cylinder to contact said ribs with thesurface thereof, and means for limiting the movement of said disk towardsaid cylinder.

ribs formed on its peripheral surface, said ribs being spaced apart andadapted to contact with the surface of the cylinder, means for inkingsaid ribs and means for moving said disk into and out of a position tocontact said ribs successively with said cylinder as the cylinderrevolves.

In witness whereof, I have hereunto set my hand this 24 day of February1914.

EUGENE W. ELFES.

Witnesses: 7

GENEVIEVE E. SoRENsnN, EDWARD A. PAUL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

